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On the number of points in a lattice polytope

Combinatorics 2017-09-15 v3 Number Theory

Abstract

In this article we will show that for every natural dd and n>1n>1 there exists a natural number tt such that for every dd-dimensional simplicial complex T\mathcal{T} with vertices in Zd\mathbb{Z}^d, the number of lattice points in the ttht^{\mathrm{th}} dilate of T\mathcal{T} is exactly χ(T)\chi(\mathcal{T}) modulo nn, where χ(T)\chi(\mathcal{T}) is the Euler characteristic of T\mathcal{T}.

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Cite

@article{arxiv.1004.1661,
  title  = {On the number of points in a lattice polytope},
  author = {Arseniy Akopyan and Makoto Tagami},
  journal= {arXiv preprint arXiv:1004.1661},
  year   = {2017}
}

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3 pages